//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Decluster( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
// Get and save the character type:
m_character_type = Type.GetType("NinjaGame.Character");
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Rest( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
// Redo the time multiplier for increasing rest need:
m_time_multiply = ( 1.0f - m_rest_randomness ) + (float) Core.Random.NextDouble() * m_rest_randomness;
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Pursue_Jump_Gap( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
// Get the ninja type:
m_ninja_type = Type.GetType("NinjaGame.Ninja");
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Throw_Shuriken( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
// Get and save this character types:
m_ninja_type = Type.GetType("NinjaGame.Ninja");
// Complain if neither can be found:
#if DEBUG
if ( m_ninja_type == null ) throw new Exception("No ninja type exists");
#endif
}
//=========================================================================================
/// <summary>
/// Creates the AI behaviour set. Must be given the character to which this behaviour
/// set belongs.
/// </summary>
/// <param name="control_character"> Character the AI behaviour is for. </param>
//=========================================================================================
public AIBehaviourSet( Character control_character )
{
// On windows debug if the control character is null then throw an exception:
#if WINDOWS_DEBUG
if ( control_character == null )
{
throw new Exception("AIBehaviourSet must have a valid control character !!!");
}
#endif
// Save the control character:
m_character = control_character;
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Patrol( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
// Pick a random direction to patrol in:
m_patrol_right = ( new Random().Next() & 1 ) == 1;
// Give either left or right a big score to start off with:
if ( m_patrol_right )
{
m_score_right = 1000;
}
else
{
m_score_left = 1000;
}
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="importance">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="control_character"> Character the behaviour is controlling. </param>
/// <param name="behaviour_set"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AIBehaviour( float importance , Character control_character , AIBehaviourSet behaviour_set )
{
// On windows debug if the control character is null then throw an exception:
#if WINDOWS_DEBUG
if ( control_character == null )
{
throw new Exception("AIBehaviour must have a valid control character !!!");
}
#endif
// On windows debug if the behaviour set is null then throw an exception:
#if WINDOWS_DEBUG
if ( behaviour_set == null )
{
throw new Exception("AIBehaviour must be part of a valid AIBeaviourSet!!!");
}
#endif
// Save importance:
m_importance = importance;
// Save the control character:
m_control_character = control_character;
// Save behaviour set:
m_behaviour_set = behaviour_set;
// Save the name of the behaviour:
m_name = GetType().Name;
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Turn_Around( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Pursue_Move_Around_Platform( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Pursue_Wall_Clear( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
}
//=========================================================================================
/// <summary>
/// Constructor. Creates the behaviour. A valid control character MUST be passed in.
/// </summary>
/// <param name="i">
/// Importance of the behaviour to this character. Behaviour scores are scaled by this.
/// </param>
/// <param name="c"> Character the behaviour is controlling. </param>
/// <param name="b"> Behaviour set the AIBehaviour belongs to. </param>
//=========================================================================================
public AI_Sight( float i , Character c , AIBehaviourSet b )
: base(i , c , b)
{
// Save this for later use
m_ninja_type = Type.GetType("NinjaGame.Ninja");
}
//=========================================================================================
/// <summary>
/// Scores the current behaviour and returns how relevant the AI thinks this action is
/// </summary>
/// <returns> A score for this current behaviour. </returns>
//=========================================================================================
public override float ScoreBehaviour()
{
// Clear the last raycast results:
m_last_raycast_results.Clear();
// Search for the player:
m_player = (PlayerNinja) Core.Level.Search.FindByType("PlayerNinja");
// If there is no player then return 0:
if ( m_player == null )
{
// Reset all these variables
m_in_sight = false;
m_sighted_last_frame = false;
m_out_of_sight_time = 1;
m_in_sight_time = 0;
// This action is not relevant
return 0;
}
// Update the player's breadcrumbs:
UpdatePlayerBreadcrumbs();
// Update which breadcrumb we should be following:
UpdatePlayerBreadcrumb();
// Shorten things:
LevelCollisionQuery c = Core.Level.Collision;
// See if the player is inside the AI's vision cone:
bool in_vision_cone = false;
// If we have marked the player as being recently in sight then skip the vision cone check:
if ( m_in_sight )
{
in_vision_cone = true;
}
else
{
in_vision_cone = IsPlayerInVisionCone();
}
// Otherwise raycast to the player: don't bother if the player is not inside the AIs vision cone:
if ( in_vision_cone )
{
// Do the raycast:
c.Intersect( ControlCharacter.Position , m_player.Position , null );
// Save all the results for later use:
for ( int i = 0 ; i < Core.Level.Collision.IntersectResultCount ; i++ )
{
m_last_raycast_results.AddLast( Core.Level.Collision.IntersectResults[i] );
}
}
// Save the previous visibility of the player here:
bool prev_in_sight = m_in_sight;
// See if the player is visible:
if ( in_vision_cone == false || c.IntersectResultCount > 0 )
{
// Player is not in sight for this frame:
m_sighted_last_frame = false;
// Not visible: see if the ai has marked the player as visible ...
if ( m_in_sight )
{
// Increase the amount of time the player has been out of sight for:
m_out_of_sight_time += Core.Timing.ElapsedTime;
// If the out of sight time is past the maximum out of sight time then mark player as out of sight
if ( m_out_of_sight_time >= OUT_OF_SIGHT_TIME )
{
// Set the in sight time to zero: but only if the ninja falls outside of the vision cone: this is to combat a situation where the ai is rapidly turning around
if ( in_vision_cone == true ) m_in_sight_time = 0;
// No longer in sight:
m_in_sight = false;
}
}
else
{
// Increase the out of sight time:
m_out_of_sight_time += Core.Timing.ElapsedTime;
// Set the in sight time to zero: but only if the ninja falls outside of the vision cone: this is to combat a situation where the ai is rapidly turning around
if ( in_vision_cone == true ) m_in_sight_time = 0;
}
}
else
{
// Player is in sight for this frame:
m_sighted_last_frame = true;
// Visible: see if the ai has marked the player as visible
if ( m_in_sight )
{
// In sight: increase in sight time
m_in_sight_time += Core.Timing.ElapsedTime;
// Set the out of sight time to zero:
m_out_of_sight_time = 0;
}
else
{
// Not marked in sight. Increase the time we are in sight for
m_in_sight_time += Core.Timing.ElapsedTime;
// If enough time has passed then mark the player as visible again:
if ( m_in_sight_time >= SIGHT_REGISTER_TIME )
{
// Set the out of sight time to zero:
m_out_of_sight_time = 0;
// Mark the player as being in sight:
m_in_sight = true;
}
}
}
// See if there was a change in visibility:
if ( m_in_sight != prev_in_sight )
{
// Change in visibility: set our score back to one
m_current_score = 1;
}
else
{
// No change in visibility: decrease the importance of this module
m_current_score *= 0.95f;
}
// Return our score:
return m_current_score * Importance;
}
/// <summary>
/// applies the force of the force box(m_power * m_direction) on a character object type
/// </summary>
public void ApplyForce_Character(Character character)
{
Vector2 force = new Vector2(m_power * m_direction.X , m_power * m_direction.Y);
character.MoveVelocity += force;
}
